The healthy growth of a baby is related to the future and hope of a family. As a parent, you must take care of your child with all your heart. It is indispensable to take vaccination on time. If the vaccination is delayed due to this or any reason, it will usually affect the child’s health in some way. Each vaccine has its own specific schedule, which cannot be changed at will, and can only be delayed as a last resort. Vaccinations need to be given when the baby is completely healthy. Therefore, there are several situations in which a baby can or needs to delay vaccination: 1. When the baby has a fever, and the temperature is over 37.5℃. 2. 2. The baby is not feeling well and has symptoms such as vomiting, diarrhea and coughing. 3, The baby has eczema or other purulent skin diseases. 4. The baby has rickets. 5, The baby has hives. 6. Babies with allergies and asthma. 7, Babies whose bodies are recovering should also defer vaccination. When these conditions are not, must be timely vaccination, which can reduce the impact on the baby’s body. Of course, it should also be clear that the vaccine is different, because it is delayed, and the impact on the baby is not the same. Vaccines are divided into booster vaccines and initial vaccines. For booster vaccines, such as DPT, it is possible to delay the vaccination in the later several booster vaccinations without any effect, but if it is the initial vaccination, delaying the vaccination still has an effect. There are exceptions, such as the hepatitis A vaccine, which can be delayed for the first time if needed when sick. It’s best for babies to be vaccinated on time, as this has the best preventive effect, and parents should not delay vaccinations due to their own negligence. If it is really necessary to postpone, but also to postpone the time to control as short as possible, the general vaccination postponed no more than 1 month better.